Abstract: A valve assembly for a refrigerant circuit, having at least two ball valves, which each have a ball as a control element and an actuator for adjusting the associated ball, and also a refrigerant circuit having heat pump functionality for a vehicle having such a valve assembly.

Abstract: An internal combustion engine having at least one outlet valve per cylinder, which can be actuated via a camshaft and a transmission device, a hydraulic valve clearance compensation element being arranged in the transmission device between the camshaft and the outlet valve, and having an engine braking device, having an engine backpressure brake for building up an exhaust gas backpressure and a compression release engine brake, by way of which at least one outlet valve can be held open at least in an engine braking phase, the compression release engine brake being formed by the hydraulic valve clearance compensation element.

Abstract: An internal combustion engine having at least one outlet valve per cylinder, which outlet valve can be actuated via a camshaft and a transmission device, a hydraulic valve clearance compensation element being arranged in the transmission device between the camshaft and the outlet valve, and having an engine braking device, having an engine backpressure brake for building up an exhaust gas backpressure and a compression release engine brake, by way of which at least one outlet valve can be held open at least in an engine braking phase, the compression release engine brake being formed by the hydraulic valve clearance compensation element.

Abstract: A method for determining total damage to at least one rotating component of a drive train in a system, in particular a wind or wave energy system, includes determining over time during operation of the system a variable characterizing a rotational speed of the component and a variable characterizing a torque transmitted by the component. A load collective is determined in a calculator unit from the temporal progression of the variables, and the total damage is determined from a comparison of the determined load collective and a reference load collective.

Abstract: An internal combustion engine having at least one outlet valve per cylinder, which can be actuated via a camshaft and a transmission device, a hydraulic valve clearance compensation element being arranged in the transmission device between the camshaft and the outlet valve, and having an engine braking device, having an engine backpressure brake for building up an exhaust gas backpressure and a compression release engine brake, by way of which at least one outlet valve can be held open at least in an engine braking phase, the compression release engine brake being formed by the hydraulic valve clearance compensation element.

Abstract: An internal combustion engine having at least one outlet valve per cylinder, which outlet valve can be actuated via a camshaft and a transmission device, a hydraulic valve clearance compensation element being arranged in the transmission device between the camshaft and the outlet valve, and having an engine braking device, having an engine backpressure brake for building up an exhaust gas backpressure and a compression release engine brake, by way of which at least one outlet valve can be held open at least in an engine braking phase, the compression release engine brake being formed by the hydraulic valve clearance compensation element.

Abstract: An exhaust-gas aftertreatment system including an exhaust-gas module which has an inlet section and an outlet section. The exhaust-gas aftertreatment system has at least one sensor fastening device which comprises at least two, preferably at least three, sensor fastening means that are angularly spaced apart from one another.

Abstract: A method for damping torsional oscillations in a power production plant includes a drive train, a rotor fitted to a rotor-side end of the drive train, and a generator driven via the drive train and fitted to a generator-side end of the drive train. By using at least one angular position of the drive train at the generator-side end thereof, a torsional moment acting on the drive train is determined and used to control the generator.

Abstract: An exhaust-gas aftertreatment system including an exhaust-gas module which has an inlet section and an outlet section. The exhaust-gas aftertreatment system has at least one sensor fastening device which comprises at least two, preferably at least three, sensor fastening means that are angularly spaced apart from one another.

Abstract: A method for determining total damage to at least one rotating component of a drive train in a system, in particular a wind or wave energy system, includes determining over time during operation of the system a variable characterizing a rotational speed of the component and a variable characterizing a torque transmitted by the component. A load collective is determined in a calculator unit from the temporal progression of the variables, and the total damage is determined from a comparison of the determined load collective and a reference load collective.

Abstract: A method for damping torsional oscillations in a power production plant includes a drive train, a rotor fitted to a rotor-side end of the drive train, and a generator driven via the drive train and fitted to a generator-side end of the drive train. By using at least one angular position of the drive train at the generator-side end thereof, a torsional moment acting on the drive train is determined and used to control the generator.

Abstract: An electroactive polymer generator is configured to convert mechanical energy into electrical energy during expansion and compression of the polymer generator. The polymer generator comprises a device for detecting expansion and compression states. The device comprises at least one acceleration sensor.

Abstract: The valve arrangement for the activation of a structural element has three inlet switching valves through which a pressure-loaded medium can be conducted. These inlet switching valves are connected on their inflow side to a pressure supply by inflow lines and are arranged parallel to one another in flow terms. Moreover, the valve arrangement has a connection element, which is connected to outflow sides of all the inlet valves by pressure lines. A control line acted upon by the medium is connected to the pressure supply. The three switching-valve groups can be activated by the control line, and in each case two switching valves and in each case one inlet switching valve are assigned to each switching-valve group. A activation valve can be interposed in each case between a switching-valve group and the control line. Three outflow lines for the medium can be arranged between an outflow location for the medium and the connection element.

Abstract: The valve arrangement for the activation of a structural element has three inlet switching valves through which a pressure-loaded medium can be conducted. These inlet switching valves are connected on their inflow side to a pressure supply by inflow lines and are arranged parallel to one another in flow terms. Moreover, the valve arrangement has a connection element, which is connected to outflow sides of all the inlet valves by pressure lines. A control line acted upon by the medium is connected to the pressure supply. The three switching-valve groups can be activated by the control line, and in each case two switching valves and in each case one inlet switching valve are assigned to each switching-valve group. A activation valve can be interposed in each case between a switching-valve group and the control line. Three outflow lines for the medium can be arranged between an outflow location for the medium and the connection element.